Armenise, Iole and Barbato, Maurizio and Capitelli, Mario and Kustova, Elena (2006) State-to-state catalytic models, kinetics, and transport in hypersonic boundary layers. Journal of Thermophysics and Heat Transfer, 20 (3). pp. 465-476. ISSN 0887-8722
Full text not available from this repository.Abstract
A new iterative model has been developed that couples, in the boundary layer of a reentering body, the equations for N 2, N, O 2, O, and NO mass fractions, N 2 and O 2 vibrational distributions, and gas temperature with the surface state-to-state heterogeneous recombination coefficients has been developed. Results for SiO 2 and metallic surfaces are presented and discussed. The non-Boltzmann behavior of the vibrational distribution functions near the surface is found, as well as the nonmonotonic behavior of the NO density profile along the boundary layer coordinate. The transport coefficients and the heat flux to the surface are calculated using the Chapman-Enskog theory. A strong dependence of transport coefficients and energy flux on the vibrational-chemical kinetics in the boundary layer is shown. In particular, the diffusion coefficients of the first and last vibrational levels differ by several orders of magnitude, according to the shape of vibrational distributions, and the surface material noticeably influences diffusion coefficients of N and NO.
| Item Type: | Scientific journal article, Newspaper article or Magazine article |
|---|---|
| Additional Information: | cited By (since 1996)14 |
| Subjects: | Engineering > Aerospace engineering Engineering > Aerospace engineering > Aerospace engineering not elsewhere classified |
| Department/unit: | Dipartimento tecnologie innovative > Istituto di ingegneria meccanica e tecnologia dei materiali |
| Depositing User: | Maurizio Barbato |
| Date Deposited: | 30 Jun 2014 05:59 |
| Last Modified: | 06 Jun 2016 08:19 |
| URI: | http://repository.supsi.ch/id/eprint/4873 |
Actions (login required)
 |
View Item |